Retell AI Voice Agent Platform

What is Retell AI: Overview

Retell AI is a conversational voice AI platform designed to help businesses automate phone-based customer interactions using AI-powered voice agents. The platform allows teams to create, test, deploy, and monitor AI agents capable of handling inbound and outbound calls with human-like conversations. It includes a visual agent framework for designing conversation flows, real-time function calling for completing business tasks, streaming knowledge base retrieval, and built-in testing tools to evaluate agent performance before deployment.

Retell AI supports communication through voice calls, chat, SMS, and APIs while integrating with popular business platforms such as HubSpot, Salesforce, Zapier, n8n, Twilio, Vonage, and GoHighLevel. The platform also offers analytics dashboards, quality assurance tools, SIP trunking support, branded caller ID, and enterprise-grade security features including HIPAA, SOC 2 Type II, and GDPR compliance. It is suitable for organizations looking to automate customer communication while maintaining oversight through testing and monitoring capabilities.

Key Features of Retell AI

• AI voice agents for inbound and outbound phone calls
• Visual conversation builder with configurable call flows
• Real-time function calling for tasks such as appointment booking, payments, CRM updates, and call transfers
• Built-in testing, quality assurance, analytics, and performance monitoring
• Integrations with telephony providers, CRMs, automation platforms, and APIs

How to Use Retell AI: Step-by-Step

Here are the simple steps to start using the RetellAI platform.

Step 1. Create a Retell AI account.

Step 2. Access the dashboard and create a new AI voice agent.

Step 3. Configure the conversation flow using prompts or the visual workflow builder.

Step 4. Connect your business knowledge base or website content for accurate responses.

Step 5. Add function calls to perform actions such as scheduling appointments, updating CRM records, processing payments, or transferring calls.

Step 6. Connect your existing phone number through SIP trunking or supported telephony providers.

Step 7. Test the AI agent using the built-in simulation environment.

Step 8. Review test results and adjust prompts or workflows as needed.

Step 9. Deploy the agent for inbound or outbound communication.

Step 10. Monitor conversations using analytics, call recordings, quality assurance tools, and performance dashboards for continuous improvement.

Use Cases of Retell AI

• AI customer support and call automation
• Appointment scheduling and confirmations
• Lead qualification and sales outreach
• AI receptionists and call routing
• Surveys, reminders, and follow-up phone campaigns

Target Audience

• Customer support teams
• Sales organizations
• Healthcare providers
• Insurance companies
• Financial service businesses
• Logistics companies
• Retail and consumer brands
• Home service businesses
• Developers building voice AI applications
• Enterprises automating call center operations

Retell AI Pricing

1. Pay as you go – Go live in minutes with $10 in free credits. Full platform access, no commitments. Just build, test, and pay as you scale.

• $0.07-$0.31/ min for AI Voice Agents
• $0.002+/ msg for AI Chat Agents

2. Enterprise Plan – Purpose-built for organizations that demand higher reliability, tighter compliance, and dedicated support, with volume pricing that scales as you grow.

• Custom Pricing for AI Voice Agents